In condition A, an authority figure gives instructions face to face. In condition B, the same instructions are sent by text message. More participants obey in condition A.
Use proximity in Agency theory to explain the difference in obedience.
50 exam-style questions on Oxford AQA IGCSE Psychology 2.2 Social influence, covering 2.2.1 Factors affecting conformity, 2.2.2 Conformity: Asch, 2.2.3 Obedience and Agency theory, 2.2.4 Dispositional factors in obedience, 2.2.5 Factors affecting bystander intervention, 2.2.6 Studies of bystander behaviour, and 2.2.7 Collective behaviour in crowds. Each one has a worked solution and a mark scheme showing where the marks go.